Improvement in churns



hinted' tant( @anni dliliirr.

Letters Patent No', 93,174, `lated August 3, 1869.

IMPROVEMENT IN CHURNS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom lt Amay couccm Beit known that I, WILLIAM 0. GHAMBERLAIN, of Dubuque, in the county ofDubuque, and Stateof Iowa, have invented certain new and useful Improvements in Ghurns; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which;

Figure l is a vertical section, taken transversely through the churn, lookingV toward the balance-wheel and driving-gear, showing the hinged segments .of the dash closed, as they appear when in the act of gathering and working the butter.

Figure 2 is avertical transverse section, through .the dash-box and flasher, showing thehinged segments open, as they appear when in the act of churning.

Figure 3 is a top view, with the cover off.

Figure 4 is a horizontal section, through one end of .the churn, showing the detachable pinion and its shaft.

Similar letters of reference indicate corresponding parts in the several ligures.

This invention relates to a novel improvement on the churn for which Letters Patent of the United States were granted to me, onv the 29th day of J anu- In the schedule annexed to the Letters Patent to which I have just referred, I described a churn-flasher or peculiar construction, which was intended for churning when turned in one direction, 'and for gathering and working the butter when 'turned in one opposite direction.

In the practical operation of said churn, it has been found that when the crank, which was used for turning the dasher passed the dead-points,7 the motion was so irregular and slow that the wings of the dasher would frequently open while working the butter, and

thns fail to perform their office as workers and gatilerers.

To obviate this objection, the nature of my invention consists in combining with adasher,wl1ich is adapted to serve the double purpose of gathering and'. working the butter, as well aschurning, a balance-wheel and spurred gearing,arranged outside ofthe churn-box,l

A1 A. the ends ihereof; and A2,'it's seniicircular bottom; -wnich palts are secured together in any suitable manner, andprovided .with a coVer, B,the cleats BrB' of which assist in the productionof the butter.

The end pieces A1 A1 of this churn-box extend beneath the bottom A2, and are connected together by longitudinal strips l) l), the ends of which are firmly rabbeted into the lower ends of the said end pieces, and further strengthened by cleats a, fastened to the pieces A1, directly over the strips b, as clearly shown in fio'. 1.

This churn-box is mounted upon legs C, which haveA tenons formed on their upper ends, that t into sockets made in the angle-irons c, which latter are securely fastened to the pieces A1, c, and b, and serve to strcngth en these parts at their joints. v

The angle-irons G G, with lifting-pieces formed on them, are secured to the ends and sides of the churnboX, and serve to strengthen it at and near its upper end.

Within this box I arrange a rotary flasher, which is so constructed that when it is rotated in the direction indicated by the arrow in fig. 2, it will operate to churn the milk and produce vbutter in a very rapid manner, and when lrotated in the direction indicated by the arrow in fig. 1, it will operate to gather and work the butter.

'Ihis dasher is fully described in myLetters Patent above referred to, but I will again describe it, that its operation in conjunction with a balance-wheel may be understood.

It consists of two arms, D D, of the form substantially as -shown in the drawings, which'are secured, at proper distances apart, tothe en dsof narrow pieces al el, whose outer surfaces are curvedand have' the same radii as the outer surfaces of the hinged wings el fl.

These wings ll il' are hinged, at i, to the curved ends of the armsD D, farthest from the axis of motion of these arms, as shown -in :the drawings, so that these wings open at points nearest the piecesll fl, and allow the milk to liow through the openings thus made, when the dasher is rotated in the direction indicated in fig. 2. When the dasher is rotated in the opposite direction regularly, the pressure ofthe liquid and solid substances in the churn will cause the wings d' d to shut, as shown in fig. 1, in which condition their outer surfaces will,

work and gather the butter into a roll. l3nt to effect this object successfully, the dasher must receive a regular rotary motion, otherwise at certain points in the rotation of said wings their free ends will drop and leave openings, in which the butterV will lodge', and thus prevent the wings from acting as \;'orlr'ers"and gather- To'prevent the wings cl fl from opening while gathpinion, J, on a shortshaft, h1, give rotary motion to the churn-dasher. i* By varying the diameters of the wheels K J, the dasher may be made to rotate several times to one rotation of the balance-wheel. v

Thepinion J is keyed on the outer end of a short shaft, h1, the inner end of which is prismatic, and is fitted into a socket made in the centre of the dasharm D nearest it, asshown in fig. 4.

The outer portion h,2 of shaft h1 is of greater diameter than this shaft, and forms a shoulder that will close tightly the opening through the churn-box, through which said shaft passes.

The opposite end of the dasher is supported in a bearing formed inside of the churn-box, by a gudgeon, j, whose axis coincides with the axis of h1.

I am aware that it is not new to use a balancewheel upon churns having rotating dashers, for equalizing the motion of such dashers, and therefore I do not claim, broadly, the application of a balance-whecl to a rotary dasher. Neither do I claim, underthis petition, the peculiar construction of the dasher, as it doesnot materially dierlin its construction from ,the dasher described in my Letters Iatent above referred to. wheel and intermediate gearing with stone-breaker jaws, for such a combination is shown and claimed in Blakes reissue patent for a stone-breaking machine; but

\Vha`t I do claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of the churn-dasher D, which has eccentrically-hinged blades d d', and the balancedriving wheel N, all in such manner as described, that the said ecentrically-hinged wings are caused to posi tively maintain their proper open and closed positions while churning the milk or cream, and working the butter, as set forth.

2. The churning-arrangement, consisting of thc dasher D al', gears J K, and balance-wheel N, as and for the purpose described.

WILLIAM C. OHAMBERLAIN.

Witnesses;l

GEO. W.v HEALEY, E. C. DooLIfr'rLn.

Nor do I claim the combination of a balance- 

